Home
Class 11
CHEMISTRY
Give the decreasing order of melting poi...

Give the decreasing order of melting points of the following `NH_(3),PH_(3),(CH_(3))_(3)N` Explain
(b) In which molecule is the van der Waals force likely to be the most important in determining the m.pt and b.pt for `ICI,Br_(2),HCI,H_(2)S,CO` .

A

`CO`

B

`H_(2)S`

C

`Br_(2)`

D

`HCI`

Text Solution

Verified by Experts

The correct Answer is:
c
`Br_(2)` is non polar molecular and hence its molting and boiling points depend only on Van der Waals forces while all order molecular are having dipole moment hence their melting and boling point depends upon dipole-dipole interactions.
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL BONDING AND MOLECULAR STRUCTURE

    A2Z|Exercise Bond Enthalpy, Bond Angle And Bond Length|23 Videos

  • CHEMICAL BONDING AND MOLECULAR STRUCTURE

    A2Z|Exercise Section B - Assertion Reasoning|37 Videos

  • CHEMICAL BONDING AND MOLECULAR STRUCTURE

    A2Z|Exercise Molecular Orbitial Theory|42 Videos

  • ATOMIC STRUCTURE

    A2Z|Exercise Section D - Chapter End Test|30 Videos

  • CHEMICAL EQUILIBRIUM

    A2Z|Exercise Section D - Chapter End Test|30 Videos

Similar Questions

Explore conceptually related problems

In which of the following molecules the van der Waals forces are likely to be the most important in determining the mpt. and b.pt.?

The decreasing order of melting points is NH_(3) gt (CH_(3))_(3) N gtPH_(3) .

Which is expected to have the highest melting point : NH_(3),(CH_(3))_(3)N or PH_(3) ? Explain why?

Which is exprected to have highest melting point : PH_3, NH_3, (CH_3)_3-N ? Explain.

Give the number of total possible ionisation isomers in [Pt(NH_(3))_(4)CI_(2)]Br_(2) .

a. Give and explain the decreasing order of atomic radius of fluorine (F) , nitrogen (N) and oxygen (O) . b. Give the decreasing order of van der Waals radii: N, O, H, Cl, Br .

Knowledge Check

  • In which of the following molecules, the van der Waals forces are likely to be the most important in determining the m.pt, and b.pt?

    A
    `CO`
    B
    `H_2S`
    C
    `Br_2`
    D
    `HCl`

  • In which of the following molecules the van der Waals forces are likely to be the most important in determining the mpt. and b.pt.?

    A
    CO
    B
    `H_2S`
    C
    `Br_2`
    D
    HCl

  • In which of the following molecular the Van der Waals forces is likely to be most important in determining and the melting and the boiling points ?

    A
    CO
    B
    `H_(2) S `
    C
    `Br_(2)`
    D
    HCl
    • A2Z-CHEMICAL BONDING AND MOLECULAR STRUCTURE-Force Of Attraction
    1. Give the decreasing order of melting points of the following NH(3),PH(...

      Text Solution

      |

    2. Which one among the following does not have the hybrogen bond ?

      Text Solution

      |

    3. Which of the following has highest visosity?

      Text Solution

      |

    4. Molecular size of ICI and Br2 is nearly same but b.pt. of ICI is abou...

      Text Solution

      |

    5. H(2)O has higher boiling point than H(2)S because

      Text Solution

      |

    6. Number of H-bonds formed by a water molecule is:

      Text Solution

      |

    7. At ordinary temperature and presture chloride is a gas bromine a liq...

      Text Solution

      |

    8. Of the two compounds shown below , the vapour pressure of B at a par...

      Text Solution

      |

    9. Which one of the following has intramolecular H -bonding ?

      Text Solution

      |

    10. In which of the following molecular the intermolecular force is of th...

      Text Solution

      |

    11. KF combines with to form KHF2. The compound contains the species :

      Text Solution

      |

    12. Which contains strongestn H- hund ?

      Text Solution

      |

    13. B.P of H(2)O (100^(@)C) and H(2)S( -= 42^(@)C) is explained by

      Text Solution

      |

    14. Ethy1 alcohol (C(2)H(5)OH) has higher boiling point than dimethyl ethe...

      Text Solution

      |

    15. Which of the following exhibits the weakest intermolecular forces?

      Text Solution

      |

    16. In which of the following species intercular H-bonding can be exbibit...

      Text Solution

      |

    17. On the basic intermolecular force predict the correct order of decre...

      Text Solution

      |

    18. Amost NH(2) , PH(3),AsH(3) and SbH(3) the one with highest bolding poi...

      Text Solution

      |

    19. Which of the following statement is true ?

      Text Solution

      |

    20. An ether is more volatile then alcohol having same molecular fromula ....

      Text Solution

      |